baber/WOPTO huggingface dataset:
Patent GB-352467-A (GB)
Abstract: 352,467. Lubricating-apparatus. BLISS, J., 30, Cheapside, London. April 8, 1930, No. 11193. [Class 102 (i).] A lubricating apparatus fitted with an auxiliary plunger pump ior occasional use has a valve member movable with the auxiliary p u m p plunger s o a r - ranged that when the auxiliary plunger is in its normal position of rest, its packing and guiding member is protected from lubricant under pressure. The Figure shows one element of a lubricating apparatus comprising a plunger 11 actuated by a cam 12 driven by pawl and ratchet from the working part to be lubricated. The oil container 16 is fitted with filling strainer 18 and receives the suction 19 which leads through non-return valves 20, 23, sight tube 22, port 25 to the pump cylinder and is discharged through the non-return valve 26. A hand-operated plunger pump is arranged on chamber 24 for flushing the system and comprises a plunger 28 retained in its outward position by a spring 32. The end of the plunger 28 is mushroomshaped and the surface 34 contacts with a seat 35 on the cylinder body and prevents pressure acting on the gland when the plunger is in its normal position of rest. The stroke of the plunger 11 may be varied by holding it out of contact with the cam by means of the rod 37. The plunger 11 is of two diameters and a vent 27 is provided in the cylinder walls to detect leakage past the plunger.
Patent GB-881475-A (GB)
Title: A method of annealing steel
IPC: C21D1/26
Filed: 1957-11-13
Abstract: A method of annealing steel in which, in order to shorten the total heating time necessary, during heating up of the steel the rate of rise in temperature is decreased when the recovery temperature range has been reached and, after allowing recovery to take place, is raised again before the re-crystallisation temperature is finally reached.  The maximum temperature reached is below 700 DEG C. Examples using rimming mild steel and killed mild steel are given in the Specification.
Patent GB-958755-A (GB)
Title: Improvements in water-proof rain hats
Inventor: BRODIE ROBERT JOHN
IPC: A42B1/04
Filed: 1962-09-17
Abstract: 958,755. Rain hats. SEIDNERS Ltd., [trading as SEAGULL PRODUCTS]. April 8, 1963 [Sept. 17, 1962], No. 35347/62. Heading A3V. A plastic (e.g. polythene) rain hat is constructed from two pieces a main part 1, Fig. 1, which extends downwardly at 1a to form a depending portion which covers the nape of the neck and the coat collar and a smaller part 2 having a strengthening folded back part 2a fitting over the head and welded at 3 to the main part. A drawtape pocket is provided by welding a strip 4 on the inner surface of the main part the strip being of shorter length than the width of the main part. In alternative embodiments the hat is constructed either from a single piece of part circular shape plastic material, or two parts one part being of part circular shape, Figs. 4 and 5, not shown.
Patent GB-171074-A (GB)
Title: New catalytic process for obtaining reactions between a gas and another substance, and apparatus for carrying out said process
IPC: B01J19/08
Filed: 1920-12-16
Abstract: 171,074. Slatineanu, E. Nov. 5, 1920, [Convention date]. Addition to 154,213. Gases, treating electrically. - A reaction between a gas and another substance is effected by means of a metal body which is partly within the gas and partly within the other reagent and forms one electrode for a discharge within the gas but wholly outside the other reagent, the metal being one which is capable, under these conditions, of absorbing the gas. This metal may be sodium, potassium, rubidium, caesium, sodium-potassium alloy, platinum, palladium, or nickel. Platinum black or platinum sponge may be used. In one form of apparatus, a glass bell a fed with hydrogen by a pipe c supports a high-pressure electrode e and dips into a liquid which is to react with the hydrogen. A solid electrode g of alkali metal is partly immersed within the bell. The upper electrode e mav be dispensed with if the corresponding terminal of the current source is earthed. In another form, the glass bell dips into liquid sodium-potassium alloy serving as electrode, and the liquid reagent floats on the alloy outside the bell only. In a third form, the discharge occurs between an inverted platinum &c. bell, dipping in the liquid reagent, and a wire within the platinum bell, the electrodes being enclosed in a glass bell containing the gas.
Patent GB-918729-A (GB)
Title: Farnesyl-farnesyl hydroquinone
IPC: A23B7/154
Filed: 1959-08-21
Abstract: The invention comprises 2,3-dimethoxy-5-methyl - 6 - farnesyl - farnesyl - benzohydroquinone-1,4 and its 4-acyl derivatives and the corresponding compounds in which the farnesyl-farnesyl group is fully hydrogenated except for the b -g  double bond, and a process for the manufacture thereof by reacting in the presence of an acid agent 2,3-dimethoxy-5-methyl-benzohydroquinone-1,4 or a 4-acyl derivative thereof with a compound of the formula:  <FORM:0918729/IV (b)/1> wherein X is a halogen atom or a hydroxy or acyloxy group and the broken line denotes a bond which may be hydrogenated or a compound derived therefrom by allyl rearrangement and, where required, hydrolysing the benzohydroquinone reaction product.  The reaction may be effected in the presence of zinc chloride in glacial acetic acid at a temperature below 40 DEG C.
Patent GB-1435529-A (GB)
Title: Absorption refrigeration
IPC: F25B15/00
Filed: 1973-07-25
Abstract: 1435529 Refrigerating BORG-WARNER CORP 25 July 1973 [7 Aug 1972] 35481/73 Heading F4H In a continuous cycle absorption refrigeration system, using, e.g. lithium bromide solution as absorbent and water as refrigerant, if the volume of liquid in the refrigerant circuit is reduced to a predetermined minimum as a result of low cooling-water temperatures or reduced refrigeration loads, absorbent solution is introduced into the refrigerant circuit. The system comprises a condenser 18 and generator 24 in an upper shell 10 and an evaporator 34 and absorber 40 in a lower shell 26. The absorber heating coil 20 is supplied with steam through a valve 22 in accordance with the temperatures of the chilled fluid passing to the load and of the cooling water passing into the absorber cooling coil 36. A circuit 14 for cooling water comprises the cooling coil 36 in the absorber, a condenser coil 12 and a cooling tower 108. When the ambient temperature and/or the refrigeration load decreases, reduced activity in the generator 24 causes increased dilution and the level of liquid refrigerant in a receiver 90 associated with an evaporator pan 32 falls, thereby actuating a switch 203a to open a valve 203 to divert a portion of the flow of absorbent from the outlet of a pump 72 to the inlet of refrigerant pump 92. The diverted absorbent mixes with the refrigerant and is passed by the pump 92 to the evaporator spray header 30. Omission of a cooling tower by-pass renders the system sensitive to load changes and to prevent the temperature of the refrigerant in the evaporator from approaching freezing whilst permitting continuous operation of the system, a refrigerant transfer line 205 and control valve 207 are provided. At a predetermined low temperature detected by a thermostat 207a, the valve 207 is opened causing a portion of liquid in the refrigerant circuit to be diverted from the outlet of refrigerant pump 92 directly to the absorber spray header 38, thereby diluting the absorbent delivered to the absorber sprays and reducing activity in the absorber.
Patent GB-820851-A (GB)
Title: Combination switch and variable resistor adapted for use with printed wiring
Inventor: BUDD WILBERT H
IPC: H01C10/36
Filed: 1955-12-09
Abstract: 820,851. Variable resistors. CHICAGO TELEPHONE SUPPLY CORPORATION. Dec. 9, 1955, No. 35482/55. Class 37. In a combined variable resistor and switch construction, the switch is mounted within a housing 33 secured to the back of the resistor housing 8 with the switch terminals 37 brought forward through the resistor housing 8 and through the front wall 9 of the assembly. In order that the terminals shall not obstruct the variable resistor mechanism the latter is made of a miniature construction and is mounted eccentrically with respect to its housing 8. Rotation of the shaft 13 causes the rotation of a disc carrying spring contacts bearing upon the resistance track 20 and a collector ring 18, the latter being brought out at terminal 25. The ends of the resistance track 20 are secured to terminals 24 by which the track is also secured to the front wall 9. The rotor assembly also comprises a drive arm 27 which coacts with a portion of the switch assembly projecting through an aperture in the rear wall of casing 8 and operates to open the switch at one limiting position of the control shaft, as described in Provisional Specification 820,852, [Group XXXVII]. As shown the assembly is secured to a printed circuit panel 15 by means of twisted-over projections 14 from the front wall of the casing 8; the terminals 24, 25, 37 project through appropriately placed apertures in the panel 15 and are thereafter soldered to the printed wiring thereon.
Patent GB-356231-A (GB)
Abstract: 356,231. Motors. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. March 7, 1930, No. 7496. Convention date, March 30, 1929. Drawing to Specification. [Class 35.] Machines with vapour and like rectifiers in place of commutators.-In an electric motor employing grid-controlled valves in place of a commutator, the armature is supplied with pulsating continuous current or single-phase alternating current in order that the anode currents shall drop periodically to zero. The invention is particularly applicable to a series motor and the field may be shunted by a resistance so that the motor will act partly as a repulsion motor. According to the Specification as open to inspection under Sect. 91 (3) (a), the pulsating continuous current can be produced in the armature circuit by transformation from the field winding which is fed with alternating current or pulsating continuous current. A motor may have several working windings each fed separately with pulsating continuous current or they may be fed as a whole with polyphase alternating current. This subject-matter does not appear in the Specification as accepted.
Patent GB-994190-A (GB)
Title: Improved reversible hydraulic piston engine
Inventor: HULLENA THOMAS HENRY
IPC: F03C1/36
Filed: 1961-10-03
Abstract: 994,190. Hydraulic reciprocating motors. T. H. HULLENA Ltd. Oct. 3, 1961, No. 35644/61. Heading F1A. In a reversible hydraulic motor, e.g. for a concrete mixer, comprising a plurality of piston and cylinder assemblies 1, Figs. 1 and 2, rotating a shaft 7 through a crank 6, supply and exhaust of hydraulic fluid are controlled by a rotary valve 13 driven through means incorporating a predetermined amount of free play whereby reversal of the valve is delayed at the end of each stroke until the pistons have passed their dead centre positions. In the construction shown, valve 13 is rotated by crank pin 40 through a lever 38, a predetermined clearance being provided in notch 39 of the lever. Lever 38 may be hinged to provide adjustment. The valve may alternatively be driven by belt and pulley, the pulley-locating key having the required clearance. Valve 13, Fig. 3, has a core 25 comprising a portion 36 arranged to open and close distributing ports 35 and sealing portions 37. Concussion at the end of each stroke is prevented by the provision of by-pass pipes 42, Fig. 11, at the top and bottom of each cylinder.
Patent GB-467841-A (GB)
Title: Agricultural land-cutting machine
IPC: A01B13/16
Filed: 1935-12-24
Abstract: 467,841. Machines for working land and cutting turf. COLLINS. C. M., and HENDERSON, W. M. Dec. 24, 1935, No. 35681. [Classes 6 (i) and 6 (ii)] [Also in Group XXI] A machine for making continuous cuts or incisions in land, particularly land covered with vegetation, comprises one or more reciprocating knives each carried by a lever which is guided in a bracket or the like and is connected to a second lever provided with means for actuating it so as to drive the knife. Each inclined knife 2 has a downward and rearwardly inclined edge 2<1> and is fastened to a lever 4 passing through a slot in a bracket 7 and pivoted on a frame member 23 which straddles the forward end of the chassis 1 of a power-driven vehicle, such as that described in Specification 450,535. The lever 4 passes through an aperture 10 in a bell-crank lever mounted on a pivot 8 passing through a slot 11. The upper arm 12 of each bell-crank is linked to a common pivoted lever 14 passing through a slotted lever 16 which is pivoted on a pivot 17 and vibrated by a driven crank 19 passing through a slot 20 and carrying a ball or the like 21 sliding between guides 22. The knives and their driving mechanism may be adjusted by moving the knives on the levers 4, by shifting the pivots 5, 8, 15, 17, by varying the effective lengths of the links 13, and by varying the amplitude of vibration of the lever 16. The knives are operated in out-of-phase relation. They may be of scimitar shape. The machine may be used for cutting the sides of drains to be excavated or for cutting roadside and other verges. The machine may be incorporated in a tractor and may include an independent motor for driving the knives.
Patent GB-327437-A (GB)
Title: Improvements in or relating to looms having stationary weft supplies
IPC: D03D47/00
Filed: 1928-12-04
Abstract: 327,437. British Celanese, Ltd., Dickie, W. A., and Hale, F. C. Dec. 4, 1928. Shuttleless looms. - In looms having a stationary weft supply, a carrier member, adapted to receive the weft, is handed across the shed by a pair of reciprocating rods operating from opposite sides of the loom, the transfer from one rod to the other being effected by electrical, mechanical or pneumatic means. In one example of electrical transfer, a carrier member 13, Figs. 1, 3 and 4, is supported by its extensions 17 in the sockets 18 of a pair of reciprocating rods 10, each socket being surrounded by a coil 19 connected to a timed switch which is operated intermittently to break the contact in one rod and make contact in the other, thus effecting the transfer. In another embodiment of the invention, a hook 36, Figs. 5 and 9, on each end of a carrier 35, is adapted to be engaged by a latch 37 pivoted at 38, an arm 39 on the latch being arranged for engagement with push rods 40 extending through the interior of the rods 10. A lever 46, oscillated every two picks by a cam 49, gives a swinging movement to a two-armed lever 44, causing its arms to be brought in turn mto position to engage the downwardly depending arm 50 of a lever 42, Fig. 7, and so release the latch 37 from one of the hooks 36 of the carrier and permit its removal by the other rod. The carrier member may also be transferred by inter-operation between the latches such as one latch serving to disengage the other latch as the rods approach each other. The weft may be inserted as a single pick, double pick, or in loop form, from one or both sides of the shed.
Patent GB-1471011-A (GB)
Title: Toggle fastening
IPC: E05C19/14
Filed: 1975-08-12
Abstract: 1471011 Clamps JOSEPH BILLINGHAM Ltd 12 Aug 1975 [15 Aug 1974] 35907/74 Heading E2B  A toggle fastening comprises a blade spring 11 anchored to an attachment plate 4 e.g. attached to part 5 of a vehicle, the free end 14 of the spring forming (not shown) or supporting a bearing of the pivot of a toggle handle 7, a toggle link 8 pivoted to the handle 7 (at 9) and a keeper 3 releasably engageable with the link 8 and adapted to be mounted on another part 6 of a vehicle, wherein the spring allows the bearing to deflect in the line of centres when the handle is moved over dead centre. The toggle link is U-shaped and loops over the keeper 3. The plate spring 11 is secured by a hollow rivet 13 between the plate 4 and a guard 17 which loops over the spring and is fixed by a hollow rivet to the plate 4 at its other end. Bolts 19 through the hollow rivets secure the plate 4 to the part 5 and the keeper 3 is welded to part 6. The plate or the keeper may be secured by rivetting welding or bolts instead.
Patent GB-1397312-A (GB)
Title: Glass for a television picture tubes faceplate
IPC: H01J29/86
Filed: 1972-08-02
Abstract: 1397312 Glass for tefevision tube CORNING GLASS WORKS 2 Aug 1972 [17 Feb 1972] 36008/72 Heading C1M A fluorine-free glass, which resists electron or X-ray browning and is used as a faceplate for a television picture tube, comprises, by weight on the oxide basis the balance, if any, consisting of other compatible constituents. 0-2% PbO and 0À4- 0À8% As 2 O 3  and/or Sb 2 O 3  may optionally be present.
Patent GB-301838-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K9/19
Filed: 1928-12-06
Abstract: 301,838. Baum, F. G. Dec. 6, 1927, [Convention date]. Armatures and field magnets, cooling; enveloping in special media.-An enclosed machine has one or more stationary pockets in its casing and means whereby a cooling liquid is transferred centrifugally to the pocket from a reservoir in the bottom of the casing; it then flows from the pocket back to the reservoir through ducts in the stator and rotor, the cycle being continuously maintained. The cooling liquid is preferably oil which, during the cycle, is broken up into mist and with an admixture of air or other gas forms a cooling medium of greater specific heat than the pure gas. When carbon dioxide, nitrogen or other non-inflammable gas is used in place of air. fire risk in the machine is reduced. Figs. 1 and 2 show a form in which the reservoir 16 at the bottom of the enclosed stator space contains oil which is cooled by a water-coil 35 and is lifted by arms 18, rotating with the rotor 2, into one or other of two pockets 19, 20 in the stator frame in accordance with the direction of rotation. From the pockets the oil passes through inclined pipes 14, 23 to troughs 22 secured between the edges of the pole-pieces 3, and it emerges in a nnely-divided state from openings 24 in the bottoms of the troughs preferably located opposite the ducts 8 between the stator laminae. The gas or air within the casing is mixed and circulated with the oil by fan blades 13 on the rotor and gas passages may also be formed through the rotor poles or between them. Fig. 4 shows the application to a squirrel cage machine in which oil from the pockets passes through pipes 14<1>, 23<1> to a trough 30 formed inside the rotor and is then flung out centrifugally through openings 27 in the rotor iron containing spraying devices, such as jet plugs positioned within and near their outer ends.
Patent GB-630702-A (GB)
Title: Improvements in toys
IPC: A63F9/00
Filed: 1946-12-06
Abstract: 630,702. Toys. JAMES INDUSTRIES, Inc. Dec. 5, 1946, Nos. 36054 and 36055. Convention dates, Nov. 1, 1945, and Aug. 21, 1946. [Class 132 (iii)] [Also in Group XXXII] A toy comprises a helical coil spring made of spring stock having such a torsional strength as to produce a stiffness of the coil which is small as compared to its weight and gravitational force and gives the coil a low natural frequency of 10 to 100 cycles per minute, the turns in their solid height resting upon each other without compression, whereby on bending the coil into a generally semi-circular form (Fig. 3) to b ing the two ends alongside each other at different levels, turns above the end at the higher level travel by gravitational force to the end at the lower level in an entertaining manner. The spring stock is of rectangular or oval cross-section and its crosssectional width 17, Fig. 2, is 1.1 to 10 times its cross-sectional height 18, the outside diameter of the coil being between 4 and 100 times the crosssectional width of the stock. The solid height of the coil is ¢ to 5 times the outside diameter of the coil. The coil will " walk " down an inclined plane, Fig. 6, or a set of steps, Fig. 7, having once been bent into the general semi-circular form. Alternatively, the coil will "walk" continuously on an inclined endless belt 39, Fig. 8, driven uphill at a suitable speed, or on an inclined disc 44, Fig. 9, driven at a suitable speed.
Patent GB-1276601-A (GB)
Title: An improved transistorized switching circuit
Inventor: HEIMBIGNER GARY LEE
IPC: H03K19/096
Filed: 1970-07-24
Abstract: 1276601 Transistor switching circuits NORTH AMERICAN ROCKWELL CORP 24 July 1970 [13 Nov 1969] 36098/70 Heading H3T An output terminal OUT is either earthed as through FET 20 when an input 21 is of one polarity, or otherwise held at substantially the full value of the voltage supply- V by a transistor arrangement, such as FET's 16, 28, which is held in a state of low impedance by two clocked bootstrap circuits 5, 26. The sources of FET's 16, 28 are enabled to attain the supply voltage V despite the threshold drop of a FET by virtue of their gates being held more negative than - V by at least a threshold voltage. In one bootstrap circuit, # 1  holds FET 12 on to charge C 1  through a load-connected FET 7. When FET 12 goes off, the voltage across C 1  holds FET 5 on, the source 10 thereof going negatively towards - V and taking the gate 4 thereof negative to an even lower voltage than - V. This provides the gate potential for FET 17. A similar circuit controlled by # 2  controls FET 28 so that by overlapping the periods of conduction of FET's 16, 28 a continuous low impedance path is mtaintained from the output OUT to - V. When FET 20 earths the output, corresponding inputs In may be applied to further FET's 42, 43 which inhibit the bootstrap action to give effectively a pushpull action at the output. The impedance of FET 20 when on is very much less than that of FET's 16, 28 when on.
Patent GB-882792-A (GB)
Title: A device for use as a silencer and power booster for spark-ignition internal combustion and diesel engines, or as a thrust booster and silencer for jet propulsion and rocket engines, or as a thrust booster for marine propulsion by jets
IPC: F01N13/18
Filed: 1959-10-26
Abstract: 882,792. Jet propulsion. PAGANOTTO, F., PAGANOTTO, A. L., BONI, A., LOMBARDI, M, and LOMBARDI, R., [trading as B.P.B. DI F. PAGANOTTO & C.]. Oct. 21, 1959, No. 36188/59. Class 114. [Also in Groups XXVI and XXVII]. A device for use as a thrust booster for marine propulsion jets comprises a tubular duct 1 provided externally with a plurality of helically deflecting fins 2 of constant pitch and with at least one transverse tube 3 closing one end, the duct 1 being surrounded by an external casing 4 to the outer surface of which the or each tube 3 is fitted flush. Water under pressure is passed through chamber 5 in the direction AQ by a reciprocating or centrifugal pump 8. The pressure drop due to the current of water being eddied by tube 3 and fins 2 includes the flow A of air through the tube 1 which boosts the thrust of the current of water.
Patent GB-963386-A (GB)
Title: Toothed driving belts
Inventor: STUART DUNCAN JAMES KEITH
IPC: F16G1/28
Filed: 1962-09-25
Abstract: 963,386. Producing toothed belts. AUSTIN MOTOR CO. Ltd. June 28, 1963 [Sept. 25, 1962], No. 36353/62. Heading B3A. [Also in Division F2] A method of manufacturing a toothed driving belt comprises corrugating an initially flat metal strip 2 to form teeth 1, and, either before or after uniting the ends of the strip, joining the strip with a flexible and substantially non- stretchable member 3 of metal strip or a multiturn winding of wire. The teeth of the belt have bonded to them a layer 4 of elastomer, rubber or a synthetic resin. The member 3 is riveted or welded to the teeth when in strip form and brazed or soldered when in wire form.